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Light mag. 4.2 earthquake - 27 km south of Tinogasta, Catamarca, Argentina, on Tuesday, Aug 9, 2022 at 6:30 am (GMT -3) -

Light mag. 4.2 earthquake - 27 km south of Tinogasta, Catamarca, Argentina, on Tuesday, Aug 9, 2022 at 6:30 am (GMT -3) Light mag. 4.2 earthquake - 27 km south of Tinogasta, Catamarca, Argentina, on Tuesday, Aug 9, 2022 at 6:30 am (GMT -3)

Light magnitude 4.2 earthquake at 148 km depth

9 Aug 09:37 UTC: First to report: EMSC after 7 minutes.
Update Tue, 9 Aug 2022, 09:42

Moderate earthquake of magnitude 4.2 just reported 27 km south of Tinogasta, Argentina

4.2 quake 9 Aug 6:30 am (GMT -3)
4.2 quake 9 Aug 6:30 am (GMT -3)
The European-Mediterranean Seismological Centre (EMSC) reported a magnitude 4.2 quake in Argentina near Tinogasta, Departamento de Tinogasta, Catamarca, only 12 minutes ago. The earthquake hit early morning on Tuesday, August 9th, 2022, at 6:30 am local time at an intermediate depth of 148 km. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
Our monitoring service identified a second report from the citizen-seismograph network of RaspberryShake which listed the quake at magnitude 4.2 as well.
According to preliminary calculations, we do not expect that the quake was felt by many people and did not cause any damage. In Tinogasta (pop. 14,500, 27 km away), Fiambala (pop. 8,100, 70 km away), Londres (pop. 2,600, 75 km away), Arauco (pop. 13,700, 78 km away), Vinchina (pop. 2,800, 84 km away), Chilecito (pop. 42,200, 96 km away), and La Puerta de San José (pop. 1,100, 97 km away), the quake was probably not felt.

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Earthquake details

Date & timeAug 9, 2022 09:30:23 UTC -
Local time at epicenterTuesday, Aug 9, 2022 at 6:30 am (GMT -3)
Depth148.0 km
Epicenter latitude / longitude28.3°S / 67.52°W (Departamento de Tinogasta, Catamarca, Argentina)
Antipode28.3°N / 112.48°E
Shaking intensityVery weak shaking
Felt1 report
Primary data sourceEMSC (European-Mediterranean Seismological Centre)
Nearest volcanoNevado de Incahuasi (159 km / 99 mi)
Nearby towns and cities27 km (17 mi) S of Tinogasta (pop: 14,500) | Show on map | Quakes nearby
70 km (44 mi) S of Fiambala (pop: 8,060) | Show on map | Quakes nearby
75 km (47 mi) SSW of Londres (pop: 2,630) | Show on map | Quakes nearby
78 km (48 mi) WNW of Arauco (La Rioja) (pop: 13,700) | Show on map | Quakes nearby
96 km (60 mi) N of Chilecito (La Rioja) (pop: 42,200) | Show on map | Quakes nearby
140 km (87 mi) NNW of Rioja (La Rioja) (pop: 162,600) | Show on map | Quakes nearby
171 km (106 mi) W of San Fernando del Valle de Catamarca (pop: 188,800) | Show on map | Quakes nearby
280 km (174 mi) SW of San Miguel de Tucuman (Tucumán) (pop: 781,000) | Show on map | Quakes nearby
Weather at epicenter at time of quakeClear Sky -0.4°C (31 F), humidity: 82%, wind: 1 m/s (2 kts) from ENE
Estimated seismic energy released1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 tons of TNT) | about seismic energy
Show interactive Map
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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
4.4132 kmLa Rioja Province, ArgentinaRaspberryShake
4.4148 kmLa Rioja Province, ArgentinaUSP


Seismic station: Las Campanas Astronomical Observatory, Chile (LCO/IU network) | Distance from quake: 320 km / 199 mi | Show on map | Station Info
Seismic station Las Campanas Astronomical Observatory, Chile: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Leave a comment if you find a particular report interesting or want to add to it.
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Catamarca tinogasta (26.9 km NNW of epicenter) [Map] / Very weak shaking (MMI II) / complex motion difficult to describe / 2-5 s : Se movió todo casi se cae el tele  

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